# N1025T: 2021 Roger Thorstad/Brad Thorstad KOLB TWINSTAR MARK 3

- Status: Valid registration
- Airframe: [Roger Thorstad/Brad Thorstad KOLB TWINSTAR MARK 3](https://openairdocs.org/model/roger-thorstad-brad-thorstad-kolb-twinstar-mark-3) (registry code 05640FY, 2 seats)
- Engine: [Rotax 912UL](https://openairdocs.org/engine/rotax-912ul) (registry code 55592)
- Serial number: M3X20-4-00116
- Year built: 2021
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: Kolb Company Inc KOLB TWINSTAR MK III
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 7, 2022
- Certificate issued: June 12, 2025
- Expires: June 30, 2032
- Mode S code: A00F3B
- Registered owner: [May Charles](https://openairdocs.org/faa-owner/MAY%20CHARLES)
- Location: [Richmond, KY](https://openairdocs.org/faa-place/KY/Richmond)
- Owner type: Individual
- Owner's area on the map: 37.7624° N, 84.3046° W: Placed by OpenAirDocs at the center of ZIP code 40475, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1025T
- Page: https://openairdocs.org/aircraft/N1025T

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Roger Thorstad/Brad Thorstad KOLB TWINSTAR MARK 3)

None in force.

### Matched by engine (Rotax 912UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN23LA227](https://openairdocs.org/ntsb/CEN23LA227), Jun 2, 2023: Kolb Twinstar (N1025T), Starbuck, MN, substantial damage. Probable cause: The pilot’s improper landing flare and hard landing, which resulted in the left axle fracturing from bending overstress.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20230602010169A](https://openairdocs.org/incident/20230602010169A), Jun 2, 2023: Roger Thorstad/Brad Thorstad KOLB TWINSTAR MARK 3 (N1025T), Starbuck, MN, Substantial damage. On June 2, 2023, a kolb twinstar mark iii airplane departed from the chandler field airport (axn), alexandria, Minnesota, at 1409 central daylight time, for…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N1025T

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N1025T before.

- [Cancelled 2013-09-27](https://openairdocs.org/deregistered/N1025T-2013-09-27): Beech E-55, S/N TE-950, built 1973. Exported to Brazil. Owner: [Goal Aviation LLC](https://openairdocs.org/faa-owner/GOAL%20AVIATION%20LLC), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando)

## Related

- Other Roger Thorstad/Brad Thorstad KOLB TWINSTAR MARK 3 aircraft: https://openairdocs.org/model/roger-thorstad-brad-thorstad-kolb-twinstar-mark-3/aircraft.md
- The Rotax 912UL engine: https://openairdocs.org/engine/rotax-912ul.md

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